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This research aims to analyze the types of errors and factors that cause students' errors in solving plantation economics story questions. This research is a qualitative and quantitative descriptive research. The subjects in this research were students in the second semester of the Pat Petulai University Coffee Science Study Program for the 2023/2024 academic year, totaling 18 students. The instruments and data collection techniques used in this research were test sheets, interviews and questionnaires. The results of the research show that the types of errors made by students are (1) conceptual errors by 96.55% of students (2) calculation errors by 86.20% of students, (3) errors in reading questions by 89.65% of students, (4) strategic errors amounted to 79.31% of students (5) data usage errors amounted to 65.51% of students. Factors causing errors include poor understanding of concepts, weak mathematics skills, affective factors, less effective teaching methods.

The purpose of this study was to find phonological errors that students make when they pronounce vowel diphthongs. Researchers also asked what type of vocal diphthong sound students most often said in tenth grade. Grade X students of the 2021/2022 school year are the subjects of this study. This study used a quantitative descriptive approach. Researchers randomly selected 60 samples from 395 individuals. The tool used is the English Vowel Diphthong word pronunciation test, which includes eight types of English vowel diphthongs with two focus words for each type. Furthermore, a voice recorder is employed to capture the students' pronunciation. Findings showed that students made 339 word mistakes. The pronunciation of X graders shows the most frequent types of vowel diphthong errors: Diphhongs [ɔʊ] with the focus word "although" experience 72% of total errors, Diphhongs [ʊə] with the focus word "during" experience 65% of total errors, and Diphhongs [aɪ] with the focus word "sacrifice" experience 61% of total errors.

In education, choosing the right college major is crucial for students to achieve their academic and career potential. However, many students in Indonesia still choose majors that do not suit their interests and talents, which hurts their academic achievement and psychological well-being. This research aims to identify the impact of errors in choosing a major on students' academic achievement and psychological well-being. This research used quantitative methods with a cross-sectional design to collect data from 90 students who experienced a mismatch with their major. The data were analyzed using descriptive and inferential statistical analysis. The research showed that most respondents were dissatisfied with their academic results and often had difficulty understanding lecture material. Most respondents agreed that a mismatch between majors interests and talents can affect academic results, and they frequently feel stressed or depressed because of studying. In conclusion, mistakes in choosing a major can hurt students' academic achievement and psychological well-being. The government and educational institutions must develop more effective and relevant educational programs and provide academic counseling and guidance to help students overcome difficulties and improve their academic performance.

When learning mathematics, students sometimes experience errors in understanding concepts, data, procedures, and principles, especially in algebraic operations. This research analyzes students' errors in solving mathematics problems on algebraic operations material. The research method used is a descriptive method with a qualitative approach. The research subjects were class VIII students at SMP Negeri 4 Kawangkoan. The instruments used were written tests, interviews, and expert validation. Data analysis techniques use qualitative techniques, including data collection, reduction, and conclusion. The conclusions obtained include that students experience three types of errors in solving mathematics problems: data errors, theorem or definition errors, and technical errors.    

This research was conducted to determine various language errors contained in the mini research reports of students of the Indonesian Language and Literature Education Study Program. The method used is a qualitative descriptive method with data collection techniques by means of observation, documentation and literature study. The source of data in this research is a mini research report from students of the Indonesian Language and Literature Education Study Program Class of 2022, 3rd semester in the 2023 Academic Year at Medan State University. Based on the analysis activities that have been carried out, various language errors were found in the areas of phonology, morphology, syntax and semantics.

This research was conducted to determine various language errors contained in the mini research reports of students of the Indonesian Language and Literature Education Study Program. The method used is a qualitative descriptive method with data collection techniques by means of observation, documentation and literature study. The source of data in this research is a mini research report from students of the Indonesian Language and Literature Education Study Program Class of 2022, 3rd semester in the 2023 Academic Year at Medan State University. Based on the analysis activities that have been carried out, various language errors were found in the areas of phonology, morphology, syntax and semantics.

This article discusses the analysis of language errors in students' papers in the Economic Education Study Program, Faculty of Economics, Medan State University. This research uses a descriptive qualitative method by analyzing and describing the types of language errors found in 10 student papers of the Economics education study program, Faculty of Economics, Medan State University. By collecting data in the form of student papers as samples, identifying and classifying the types of language errors , as well as describing and interpreting the findings. The research results identified four main categories of errors, namely errors in writing letters, words, punctuation marks, and absorption elements. In-depth analysis is carried out by classifying each error category into more specific types along with examples and corrections. These findings show the importance of understanding and mastering good and correct Indonesian language rules in writing scientific papers, especially for students. It is hoped that this research can provide valuable information for teachers and related institutions to improve students' language skills in writing quality scientific papers.

This article discusses the analysis of language errors in students' papers in the Economic Education Study Program, Faculty of Economics, Medan State University. This research uses a descriptive qualitative method by analyzing and describing the types of language errors found in 10 student papers of the Economics education study program, Faculty of Economics, Medan State University. By collecting data in the form of student papers as samples, identifying and classifying the types of language errors , as well as describing and interpreting the findings. The research results identified four main categories of errors, namely errors in writing letters, words, punctuation marks, and absorption elements. In-depth analysis is carried out by classifying each error category into more specific types along with examples and corrections. These findings show the importance of understanding and mastering good and correct Indonesian language rules in writing scientific papers, especially for students. It is hoped that this research can provide valuable information for teachers and related institutions to improve students' language skills in writing quality scientific papers.

Community Service in English means community service, which is an activity of helping the community in the form of several activities without expecting any form of reward. Community service is one of the pillars of the Tri Dharma of Higher Education, namely: education, research and community service. Universities not only carry out education for their students, but also carry out research and develop innovation, as well as preserve and develop superior knowledge that is beneficial to society. Data collection on marriages that have not been registered is a problem that is often faced in managing population data in many sub-districts. This article discusses the proposed solution through the development of the Kalimasada application to improve the quality of population data in Kedungdoro Village. The service method used involves the process of data collection, needs analysis, application development, and user training. The approach used is the use of mobile application-based information technology to facilitate the process of collecting data on unregistered marriages. The Kalimasada application is designed with an intuitive and easy-to-use interface, allowing sub-district officials to quickly record data on unregistered marriages. In addition, this application is equipped with an automatic data validation feature to reduce input errors and increase data accuracy. During the service process, training was conducted for the community about the importance of reporting unregistered marriages to subdistrict officers via the Kalimasada application. The results of implementing the Kalimasada application show a significant increase in data collection on unregistered marriages in Kedungdoro Village. With this application, the data collection process becomes more efficient and accurate, producing more valid and reliable data. Apart from that, public participation in reporting unregistered marriages has also increased, so that the data collected becomes more complete. In conclusion, developing the Kalimasada application is an effective solution for improving the quality of population data in Kedungdoro Village. The use of information technology in public administration can help speed up the data collection process and increase data accuracy. The next step is to expand the implementation of this application to other sub-districts and continue to carry out monitoring and evaluation to ensure its sustainability and effectiveness in the long term.

This study focused on UNIMED Biology Department students and aimed to find Indonesian language errors in their WhatsApp conversations with lecturers. The data included messages sent by UNIMED biology students to lecturers via WhatsApp. A qualitative analysis was conducted to compare this data with language error standards set in good and correct Indonesian language rules, such as EYD, PUEBI, and KBBI. The results showed that some of the language mistakes that often occur in conversation include incorrect word use, incorrect punctuation, and ineffective sentences

This study tries to identify the faults and circumstances that lead students to miscalculate when attempting to solve word problems involving a system of linear equations with two variables using Watson's criteria. This kind of study employs qualitative, descriptive research methods. Data was gathered using a variety of methods, including analysis, interviews, documentation, and a written test with five-item description questions. Class VIII students from SMP Negeri 5 Tondano 2022/2023 served as the study's sources and subjects. They were chosen after careful consideration. Data analysis techniques in this study through data reduction, data presentation, and conclusions. The results showed that the students' errors were incorrect data, inappropriate procedures, response level conflicts, and skills hierarchy problems. The causative factors are that students are not careful when writing answers, students think that conclusions do not need to be written down, students forget how to change the story form questions into the form of mathematical models or the principles used are still wrong, students forget to write examples, students are wrong in operating numbers either subtraction, addition, division and multiplication, students forgot to write conclusions, students were unable to write down existing data, students did not know how to answer questions, students forgot to find x and y values using the substitution method, students used wrong marks in mathematics, students ran out of time when solving problems.

Recognizing outstanding students is an essential strategy to encourage learners to improve their academic performance and overall learning quality. However, the process of selecting the best students at SMK Negeri 1 Raman Utara still encounters significant challenges due to the complexity of the evaluation criteria, which include academic achievement, attendance, participation in extracurricular activities, and student behavior. The current manual selection method is considered less effective because it is time-consuming and susceptible to subjectivity in decision-making. This study aims to address these issues by developing a technology-based Decision Support System utilizing the Simple Additive Weighting (SAW) method. SAW was chosen for its efficiency in solving multi-criteria problems through matrix normalization and preference weighting for each alternative. The development process includes requirement analysis, system design, and the implementation of an automated ranking mechanism for student candidates. Based on the testing results, the implemented system can process assessment data rapidly and produce accurate and objective rankings of high-achieving students. The system offers a practical solution for the school by enhancing transparency and validity in the selection process, minimizing human calculation errors, and supporting more equitable and data-driven decision-making.

The concept of algebra is very important in learning mathematics, students' ability to understand advanced mathematics lessons depends on mastery of algebraic concepts. Therefore, it is necessary to analyze the errors that often arise when students solve algebra problems. The purpose of this study is to analyze the errors of vocational students in class XI in solving algebra problems. This research uses a qualitative method that is analyzed descriptively. The research subjects were 28 students of class XI with the object of research, which is the errors that arise when students solve algebra problems. The results showed that based on Kastolan's Theory, procedural errors occur most often, followed by technical errors, and concepts.

Researchers often find that there are students' error' in using passive on writing texts. Applying proper grammar in writing recount text is usually a problem for students. The purpose of this study was to clasify the errors and the causes of English Literature students in using passive voice on their recount text writings at Pamulang University. Qualitative descriptive method was used to approach the data. The population in this study are about 200, third semester students of Unpam English Literature Department. Researchers take 20 students to represent the population sample with purposive sampling technique. The instrument is students’ recount texts. Researchers ask students to write down their unique experiences. Researchers collect data, identify data, classify passive voice errors and explain the causes of students’s errors in using passive voice on recount text. Students’ errors are classified into four categories based on the types of errors, they are omission errors, addition errors, misformation errors, and misordering errors. After finishing this research, researchers are expected to enrich lecturer and student knowledge and improve students' ability in useing passive sentences in writing recount text, and to find out the types and the causes of students' errors in using passive sentences in writing recount texts.

This study aims to examine errors in the morphological aspects found in the narrative texts of fifth-grade students at SD Negeri 5 Dersalam. The methodology employed is qualitative descriptive, focusing on data containing morphological errors or improper sentence usage. The narrative compositions of the fifth-grade students from SD Negeri 5 Dersalam serve as the primary data source. Data collection was conducted through the documentation of student compositions. The data analysis was carried out using the Milles Huberman analysis model. The research findings indicate a variety of language errors in the students' narrative texts, including errors in the use of prepositions, incorrect writing of standard words, and errors in affixation writing .

Misconceptions are concepts that are not relevant to scientific understanding accepted by experts in the field concerned and can cause difficulties in understanding material. The aim of this research is to examine the results of misconception analysis in working on arithmetic series operations at PGMI 3 UIN North Sumatra. This research uses survey and test methods to identify misconceptions that generally arise when PGMI-3 students work on arithmetic series operations. The research results show that there are several misconceptions involving understanding the general formula for arithmetic series, calculating the nth term, and adding terms in a series. Most of these misconceptions are related to inaccurate understanding and lack of focus on the basic concepts of arithmetic series. The type of error that many students make is an error in determining a formula with an error percentage of 20.49% and the error being made is an error in the final result determined, with an error percentage of 17.93%. Of the 39 students, there were 24 students who answered the questions correctly and well and there were 15 students who made different mistakes.

A flat shape is a geometric part that only has a perimeter and area. There are various shapes of flat shapes, such as triangle, square, long, parallelogram, rhombus, kite, trapezoid, and circle. The aim of this research is to conduct a literary analysis related to the difficulties faced by students in expressing their ideas in the subject. which are given. The analysis method used is called Systematic Literature Review (SLR). Data collection was carried out by documenting and reviewing 7 national index articles; the articles are then broken down into different areas. Based on the research results, there are thirteen articles that discuss the difficulties experienced by students when solving problems related to the topic of building a flat-sided room. Based on the research results, it can be concluded that there are still problems that students often face when trying to solve problems related to the construction of flat-sided spaces. The most common types of errors are formula errors, errors in shape identification, and errors in understanding the concept of plane figures. This is caused by uneven understanding of concepts, inaccurate determination of formulations, and uneven student bias in understanding the results of flat shapes.

This research was carried out with the aim of this research being to analyze what errors there are in Arabic writing skills for beginner students. This research uses a qualitative descriptive method with observation, documentation and data analysis techniques. The results of the research found errors in Arabic writing skills for beginner students.

Language errors often occur consciously because students basically believe that they do not master the language system they use, so they are not sure about the words they make. Because of the difficulties he experienced, he then thought about creating his own language or even abandoning it. This research analyzes language errors from the most important thing, namely the speeches of Indonesian state leaders from the beginning until now. The analysis was carried out using theories viewed from a linguistic perspective, including Phonology, Semantics and Spelling (EYD). We should preserve the Indonesian language by communicating well, politely and courteously so that we as young people do not feel the fading of this language. Additionally, we must reduce the use of slang, especially in conversations on social media, as it can influence the way the next generation speaks. In everyday life, language must be adapted to the situation at hand and spoken correctly.

This language error analysis aims to describe language errors in terms of phonology, morphology, syntax, semantics and spelling contained in descriptive texts made by X-11 students at SMAN 2 Tasikmalaya as well as providing corrections to these errors. The researcher used a descriptive analysis method by carrying out several stages in the research process, including: (1) collecting data, (2) describing the data, (3) analyzing the data, and (4) drawing conclusions. The research techniques used in this research are observation, interviews and literature studies or literature studies by conducting a review study of books, literature, notes and reports that are related to the problem being solved. The results of the analysis regarding language errors in descriptive texts made by X-11 students at SMAN 2 Tasikmalaya can be concluded that there are forms of language errors in the areas of phonology, morphology, syntax, semantics and spelling. Linguistic-morphological category errors include errors in affixation. Syntactic errors consist of errors in sentence construction. There are also semantic errors which consist of errors in the meaning of a sentence which can make the reader misinterpret the sentence. Then there are errors in the use of spelling or phonology, these spelling errors consist of spelling errors in usage and writing capital letters.